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Overall, the top 10 construction companies in Wales won £714 million-worth of work in the last 12 months according to Glenigan data.

The top 10 construction companies in Wales league table ranks the top 10 best performing contractors by the total value of projects won over the past 12 months and identifies the number of projects each contractor was awarded.

The table reflects activity in Clwyd, Dyfed, Gwent, Gwynedd, Mid Glamorgan, Powys, South Glamorgan and West Glamorgan.

This league table, together with our other regional league tables, are regularly updated, so check back again to see which construction companies in Wales are winning the most work.

Position Contractor Number of projects Value of projects (£m)
Live Projects
Willmott Dixon Holdings Limited 5 108 See all projects
Morgan Sindall Group Plc 7 104 See all projects
ISG Construction Limited 4 104 See all projects
Royal BAM Group 4 84 See all projects
Bouygues UK 1 69 See all projects
Wates Group Ltd 5 62 See all projects
Knights Brown Construction Ltd 3 59 See all projects
Lagan Aviation and Infrastructure Ltd 1 44 See all projects
Read Construction Ltd 7 41 See all projects
Buckthorn Partners & One Equity Partners 2 39 See all projects
No Companies Found
Source: Glenigan | Last modified February 2024

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